Munsingwear introduced the world famous
Grand Slam® knit shirt in 1955, creating an
instantly iconic classic. The sport of golf has
since become a lifestyle, not just a few hours on
the course. The tagline "On Course. Off Course.
Change Course." was developed to characterize
this attitude, and the Ball in Motion icon was
introduced to represent the brand's forward
motion as it earns the loyalty of both male and
female consumers. Grand Slam apparel:
the future is already here.